1402222220 has 108 divisors (see below), whose sum is σ = 3639512016. Its totient is φ = 452390400.

The previous prime is 1402222207. The next prime is 1402222229. The reversal of 1402222220 is 222222041.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (1402222229) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 280745 + ... + 285695.

Almost surely, 2^1402222220 is an apocalyptic number.

1402222220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1402222220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1819756008).

1402222220 is an abundant number, since it is smaller than the sum of its proper divisors (2237289796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1402222220 is a wasteful number, since it uses less digits than its factorization.

1402222220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5008 (or 4982 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 1402222220 is about 37446.2577569508. The cubic root of 1402222220 is about 1119.2805275031.

Adding to 1402222220 its reverse (222222041), we get a palindrome (1624444261).

The spelling of 1402222220 in words is "one billion, four hundred two million, two hundred twenty-two thousand, two hundred twenty".